Foetal sex can be determined by examining cells from amniotic fluid looking for

Experimental verification of the chromosomal theory of inheritance was given by

In a gene pool, along with beneficial mutations those mutations also exists which are damaging to an individual. It has been found that these mutations are irreversible because

$I.$ they have survival value

$II.$ they are acquired

$III.$ they are recessive and carried by heterozygous individuals only

$IV.$ they show genetic drift

Choose the incorrect option for given statement

Kappa particles indicate

If a diploid cell is treated with colchicine, then it becomes

In phenylketonuria